Seimei

Specs, price & availability · verified Oct 2026

Seimei is a 140 cm, 49 kg biped from Waseda University (Japan), prototype with no published price.

Price
Not disclosed
Height
140 cm
Weight
49 kg
Total DoF
23

Last verified Oct 10, 2026

Price & availability

Waseda University has not published a price

Prototype

Current dataset status: Prototype.

Product overview

About Seimei

SEIMEI is a verification prototype of a domestically developed Japanese humanoid. MONOist reports that it was unveiled publicly in Kyoto on 28 April 2026. It is developed by the Kyoto Humanoid Association (KyoHA), a general incorporated association established in August 2025 that includes Waseda University among its research and concept partners.

MONOist reports a height of about 140 cm, a weight of about 49 kg including the battery, and 23 degrees of freedom across the legs, waist and arms. Dempa Digital gives the same height and weight and describes 23 movable joint axes. The planned walking demonstration did not take place because an ankle-link component broke during preparations.

KyoHA says Japan lacks a domestic hardware development framework, and it aims to plan, design and build the robot, including its components, in Japan. It plans two future models in parallel, with a high-output power model prioritized and an agile, motor-driven functional model. Those plans are not variants of the SEIMEI verification prototype. No price, order route or delivery date has been announced.

Capabilities

Key features

Verification prototype

MONOist describes SEIMEI as a verification machine, unveiled in Kyoto on 28 April 2026. [2]

Walking demo cancelled

MONOist says the planned walking demonstration was cancelled after an ankle-link component broke during preparations. [3]

Domestic development goal

Waseda's news page says KyoHA aims to address Japan's lack of a domestic hardware development framework and an integrated industrial structure. [1]

Two planned models

AIsmiley says KyoHA is developing a high-output power model, prioritized first, and a motor-driven agile model. [4]

Hardware profile

Specifications

Official — stated by the manufacturer or organizerReported — stated by a credible third partyEstimated — derived or approximate

Body

Height
140 cmReported — stated by a credible third party[3][5]Approximate, per MONOist; Dempa Digital gives the same figure
Weight
49 kgReported — stated by a credible third party[3][5]Including battery, per MONOist and Dempa Digital
Total DoF
23Reported — stated by a credible third party[3][5]Legs 6x2, waist 3, arms 4x2 per MONOist; hands not listed. Dempa Digital also gives 23 movable joint axes
Show unknown fields (13)

Mobility

Maximum speed
Not published
Peak joint torque
Not published
Actuation
Not published

Power

Battery
Not published
Runtime
Not published
Charge time
Not published
Swappable battery
Not published

Hands & Manipulation

DoF per hand
Not published
Payload
Not published
Hand / end effector
Not published

Compute & Sensing

Onboard compute
Not published
Sensors
Not published
AI stack
Not published

Quick answers

Seimei FAQ

Can you buy Seimei?

No general order page is verified. Seimei is currently classified as prototype. [1]

How tall is Seimei and how much does it weigh?

Seimei is 140 cm tall and weighs 49 kg (Including battery, per MONOist and Dempa Digital). [3][5]

How many degrees of freedom does Seimei have?

Seimei has 23 listed degrees of freedom; Legs 6x2, waist 3, arms 4x2 per MONOist; hands not listed. Dempa Digital also gives 23 movable joint axes. [3][5]

Who makes Seimei?

Seimei is made by Waseda University, based in Japan. [1]

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Evaluation footprint

Benchmarks & competitions

No benchmark embodiments or results reference this robot yet.

Related

Similar robots

Evidence

Sources

  1. [1]KyoHA (Kyoto Humanoid Association) participation (Waseda Graduate School of Information, Production and Systems) ↗Waseda University · official · accessed Oct 8, 2026
  2. [2]動かぬ検証機「SEIMEI」に純国産ヒューマノイド開発に向けたKyoHAの覚悟を見たロボット開発クローズアップ(1/3 ページ) ↗MONOist (ITmedia) · press · accessed Oct 10, 2026
  3. [3]動かぬ検証機「SEIMEI」 (MONOist, 2/3 ページ) ↗MONOist (ITmedia) · press · accessed Oct 10, 2026
  4. [4]KyoHA SEIMEI humanoid (AIsmiley) ↗AIsmiley · press · accessed Oct 10, 2026
  5. [5]KyoHA unveils SEIMEI verification robot (Dempa Digital, in Japanese) ↗Dempa Digital · press · accessed Oct 10, 2026